There's a simple test trending right now that can identify the exact foods that are making you gain weight.

"I ended up losing 30 pounds after getting rid of those foods from my diet," she said.

Now, the test can get pricey and not all insurance companies are willing to pick up the tab.

Dr. Heather Moday runs a functional medicine center in Center City. She says you can get similar results with a simple and free elimination diet gives an unbelievable amount of information without having to run any food sensitivity testing.

For a short time, Dr. Moday recommends removing the most common inflammatory offenders, such as gluten, dairy, eggs and soy.

Then, slowly reintroduce them to see how you feel.

"Eliminate gluten, eggs, all grains, white potatoes, dairy, soy, processed foods, industrial oils like corn, peanut and vegetable oils and white sugar. For autoimmune, sometimes nuts and nightshades. Its only 21 days and then we add things back to see how people react. Really its about accentuating fresh foods, non GMO, and organic products," she said.

Steve Krol says his blood pressure is down and so is his weight

"I was 204 and I'm down to 184. I have lost one pants size," he said.

It's a little more work than the test, but either way, once you have the results, you have to do the work and eliminate your trigger foods.

There are various food allergy tests on the market, and a number of practitioners and doctors can order it for you.